296
FNUS75 KREV 060944
FWSREV

Spot Forecast for Alpine County Fuels Mitigation Program...Alpine County
National Weather Service Reno NV
244 AM PDT Fri Jun 6 2025

Forecast is based on ignition time of 0700 PDT on June 06.
If conditions become unrepresentative...contact the National
Weather Service in Reno.

.DISCUSSION...

* Thunderstorms remain possible near the burn site each afternoon
  through Sunday. Sudden, strong winds shifts and lightning are
  possible near thunderstorms.

* High pressure overhead will maintain warm temperatures and low
  daytime humidity this weekend.

* Winds remain light and terrain driven through the weekend, but
  will likely increase around midweek next week.

.REST OF TODAY...

Sky/Weather.........Slight chance of showers and thunderstorms after
                    1300 hours local. Otherwise, partly cloudy.
Temperature.........51-54 at ignition...Max 80-83.
RH..................65-70% at ignition...Min 20-25%.
20-Foot Winds.......Winds northwest at 2-6 mph at ignition...otherwise
                    upslope 6-10 mph. Gusty and erratic winds expected
                    near thunderstorms in the afternoon.
Chc Wetting Rain....10%.
Chance of thunder...20%.
Mixing Height.......9000-10000 ft agl.
Transport Winds.....Light winds becoming east around 10 mph in the
                    afternoon.
Ventilation.........Poor to good.

TIME (PDT)      7 AM   9 AM   11 AM  1 PM   3 PM
Sky (%).........7      3      5      5      38
Weather cov.....                     S CHC  S CHC
Weather type....NONE   NONE   NONE   RNSHWR RNSHWR
Tstm cov........                     SCHC   S CHC
CWR.............0      0      10     10     10
Chc of thdr (%).0      0      0      15     20
Temp............52     61     72     77     77
RH..............68     43     28     23     23
20 ft wind......NW 2   NE 2   N 6    N 6    W 5
20 ft wind gust.5      5      10     10     10
Mx ht msl (kft).1.5    5.4    9.8    9.8    10
Transport wind..N 5    E 10   E 10   E 10   S 5
Vrate kt-ft/1K..5      38     69     69     61
Ventrate Cat....POOR   FAIR   GOOD   GOOD   GOOD

.TONIGHT...

Sky/Weather.........Slight chance of showers and thunderstorms before
                    2100 hours local. Otherwise, partly cloudy.
Temperature.........Min 51-54.
RH..................Max 70-75%.
20-Foot Winds.......Southwest winds around 4-8 mph early in the
                    evening becoming light. Gusty and erratic winds
                    expected near thunderstorms early in the evening.
Chc Wetting Rain....10% in the early evening, becoming 0% overnight.
Chance of thunder...25%.
Mixing Height.......1500-2500 ft agl.
Transport Winds.....West around 10 mph in the evening becoming
                    light.
Ventilation.........Good to poor.

TIME (PDT)      5 PM   7 PM   9 PM   11 PM  1 AM   3 AM
Sky (%).........48     48     13     9      9      4
Weather cov.....S CHC  S CHC  S CHC
Weather type....RNSHWR RNSHWR RNSHWR NONE   NONE   NONE
Tstm cov........S CHC  S CHC
CWR.............10     10     10     0      0      0
Chc of thdr (%).30     30     0      0      0      0
Temp............76     74     66     60     57     54
RH..............27     34     49     61     65     66
20 ft wind......SW 7   SW 7   SW 6   SW 3   SW 3   W 3
20 ft wind gust.10     10     10     5      5      5
Mx ht msl (kft).6.2    6.2    1.8    1.5    1.5    1.5
Transport wind..W 10   W 10   W 10   W 5    W 5    W 5
Vrate kt-ft/1K..50     50     12     7      7      8
Ventrate Cat....GOOD   GOOD   MRGL   POOR   POOR   POOR

.SATURDAY...

Sky/Weather.........Sunny then becoming partly cloudy. Slight
                    chance of showers and thunderstorms in the
                    afternoon.
Temperature.........Max 83-86.
RH..................Min 18-23%.
20-Foot Winds.......Upslope 3-7 mph. Gusty and erratic winds
                    expected near thunderstorms in the afternoon.
Chc Wetting Rain....5%.
Chance of thunder...20%.
Mixing Height.......9500-10500 ft agl.
Transport Winds.....Light winds becoming east around 10 mph early
                    in the afternoon.
Ventilation.........Poor to good.

TIME (PDT)      5 AM   7 AM   9 AM   11 AM  1 PM   3 PM
Sky (%).........6      6      4      33     33     33
Weather cov.....                     S CHC  S CHC  S CHC
Weather type....NONE   NONE   NONE   RNSHWR RNSHWR RNSHWR
Tstm cov........                     S CHC  S CHC  S CHC
CWR.............0      0      0      10     10     10
Chc of thdr (%).0      0      0      20     20     20
Temp............52     55     68     77     82     83
RH..............66     60     37     23     19     19
20 ft wind......SW 3   SW 3   NE 1   NE 6   NE 6   N 6
20 ft wind gust.5      5             10     10     10
Mx ht msl (kft).1.6    1.6    4.0    8.2    8.2    11
Transport wind..W 5    W 5    E 5    E 10   E 10   SW 5
Vrate kt-ft/1K..6      6      20     57     57     55
Ventrate Cat....POOR   POOR   MRGL   GOOD   GOOD   GOOD

$$
Forecaster...Salas
Requested by...Jim lamb
Type of request...PRESCRIBED
.TAG 2513867.11/REV
.DELDT 06/06/25
.FormatterVersion 2.0.0
.EMAIL jlamb@alpinecountyca.gov,jeffbrees@yahoo.com